java.lang.Object
- org.djutils.stats.summarizers.event.StatisticsEvents

```
public final class StatisticsEvents
extends Object
```
StatisticsEvents defines the standard events for statistics.

Copyright (c) 2020-2023 Delft University of Technology, Jaffalaan 5, 2628 BX Delft, the Netherlands. All rights reserved. See for project information https://djutils.org. The DJUTILS project is distributed under a three-clause BSD-style license, which can be found at https://djutils.org/docs/license.html.

Author:

Alexander Verbraeck, Peter Knoppers

Field Summary

Fields
Modifier and Type	Field	Description
`static EventType`	`COUNT_EVENT`	COUNT_EVENT is fired whenever there is an observation that potentially updates the count of the Counter.
`static EventType`	`INITIALIZED_EVENT`	INITIALIZED_EVENT is fired whenever a statistic is (re-)initialized.
`static EventType`	`MAX_EVENT`	MAX_EVENT is fired whenever there is an observation that potentially updates the highest observed value of the statistic.
`static EventType`	`MIN_EVENT`	MIN_EVENT is fired whenever there is an observation that potentially updates the lowest observed value of the statistic.
`static EventType`	`N_EVENT`	N_EVENT is fired whenever n is updated.
`static EventType`	`OBSERVATION_ADDED_EVENT`	OBSERVATION_ADDED_EVENT is fired whenever an observation is processed.
`static EventType`	`POPULATION_EXCESS_KURTOSIS_EVENT`	EXCESS_KURTOSIS_EVENT is fired whenever there is an observation that potentially updates the population excess kurtosis of the statistic.
`static EventType`	`POPULATION_KURTOSIS_EVENT`	KURTOSIS_EVENT is fired whenever there is an observation that potentially updates the population kurtosis of the statistic.
`static EventType`	`POPULATION_MEAN_EVENT`	MEAN_EVENT is fired whenever there is an observation that potentially updates the population mean value of the statistic.
`static EventType`	`POPULATION_SKEWNESS_EVENT`	SKEWNESS_EVENT is fired whenever there is an observation that potentially updates the population skewness of the statistic.
`static EventType`	`POPULATION_STDEV_EVENT`	STDEV_EVENT is fired whenever there is an observation that potentially updates the population standard deviation of the statistic.
`static EventType`	`POPULATION_VARIANCE_EVENT`	VARIANCE_EVENT is fired whenever there is an observation that potentially updates the population variance of the statistic.
`static EventType`	`SAMPLE_EXCESS_KURTOSIS_EVENT`	SAMPLE_KURTOSIS_EVENT is fired whenever there is an observation that potentially updates the sample excess kurtosis of the statistic.
`static EventType`	`SAMPLE_KURTOSIS_EVENT`	SAMPLE_KURTOSIS_EVENT is fired whenever there is an observation that potentially updates the sample kurtosis of the statistic.
`static EventType`	`SAMPLE_MEAN_EVENT`	SAMPLE_MEAN_EVENT is fired whenever there is an observation that potentially updates the sample mean value of the statistic.
`static EventType`	`SAMPLE_SKEWNESS_EVENT`	SAMPLE_SKEWNESS_EVENT is fired whenever there is an observation that potentially updates the sample skewness of the statistic.
`static EventType`	`SAMPLE_STDEV_EVENT`	SAMPLE_STDEV_EVENT is fired whenever there is an observation that potentially updates the sample standard deviation of the statistic.
`static EventType`	`SAMPLE_VARIANCE_EVENT`	SAMPLE_VARIANCE_EVENT is fired whenever there is an observation that potentially updates the sample variance of the statistic.
`static EventType`	`SUM_EVENT`	SUM_EVENT is fired whenever there is an observation that potentially updates the sum value of the statistic.
`static EventType`	`TIMED_MAX_EVENT`	TIMED_MAX_EVENT is fired whenever there is an observation that potentially updates the highest observed value of the statistic.
`static EventType`	`TIMED_MIN_EVENT`	TIMED_MIN_EVENT is fired whenever there is an observation that potentially updates the lowest observed value of the statistic.
`static EventType`	`TIMED_N_EVENT`	TIMED_N_EVENT is fired whenever n is updated.
`static EventType`	`TIMED_WEIGHTED_POPULATION_MEAN_EVENT`	TIMED_WEIGHTED_MEAN_EVENT is fired whenever there is an observation that potentially updates the weighted population mean value of the statistic.
`static EventType`	`TIMED_WEIGHTED_POPULATION_STDEV_EVENT`	TIMED_WEIGHTED_STDEV_EVENT is fired whenever there is an observation that potentially updates the weighted population standard deviation of the statistic.
`static EventType`	`TIMED_WEIGHTED_POPULATION_VARIANCE_EVENT`	TIMED_WEIGHTED_VARIANCE_EVENT is fired whenever there is an observation that potentially updates the weighted population variance of the statistic.
`static EventType`	`TIMED_WEIGHTED_SAMPLE_MEAN_EVENT`	TIMED_WEIGHTED_SAMPLE_MEAN_EVENT is fired whenever there is an observation that potentially updates the weighted sample mean value of the statistic.
`static EventType`	`TIMED_WEIGHTED_SAMPLE_STDEV_EVENT`	TIMED_WEIGHTED_SAMPLE_STDEV_EVENT is fired whenever there is an observation that potentially updates the weighted sample standard deviation of the statistic.
`static EventType`	`TIMED_WEIGHTED_SAMPLE_VARIANCE_EVENT`	TIMED_WEIGHTED_SAMPLE_VARIANCE_EVENT is fired whenever there is an observation that potentially updates the weighted sample variance of the statistic.
`static EventType`	`TIMED_WEIGHTED_SUM_EVENT`	TIMED_WEIGHTED_SUM_EVENT is fired whenever there is an observation that potentially updates the weighted sum value of the statistic.
`static EventType`	`TIMESTAMPED_OBSERVATION_ADDED_EVENT`	OBSERVATION_ADDED_EVENT is fired whenever an observation is processed.
`static EventType`	`WEIGHTED_OBSERVATION_ADDED_EVENT`	WEIGTHED_OBSERVATION_ADDED_EVENT is fired whenever a weighted observation is processed.
`static EventType`	`WEIGHTED_POPULATION_MEAN_EVENT`	WEIGHTED_MEAN_EVENT is fired whenever there is an observation that potentially updates the weighted population mean value of the statistic.
`static EventType`	`WEIGHTED_POPULATION_STDEV_EVENT`	WEIGHTED_STDEV_EVENT is fired whenever there is an observation that potentially updates the weighted population standard deviation of the statistic.
`static EventType`	`WEIGHTED_POPULATION_VARIANCE_EVENT`	WEIGHTED_VARIANCE_EVENT is fired whenever there is an observation that potentially updates the weighted population variance of the statistic.
`static EventType`	`WEIGHTED_SAMPLE_MEAN_EVENT`	WEIGHTED_SAMPLE_MEAN_EVENT is fired whenever there is an observation that potentially updates the weighted sample mean value of the statistic.
`static EventType`	`WEIGHTED_SAMPLE_STDEV_EVENT`	WEIGHTED_SAMPLE_STDEV_EVENT is fired whenever there is an observation that potentially updates the weighted sample standard deviation of the statistic.
`static EventType`	`WEIGHTED_SAMPLE_VARIANCE_EVENT`	WEIGHTED_SAMPLE_VARIANCE_EVENT is fired whenever there is an observation that potentially updates the weighted sample variance of the statistic.
`static EventType`	`WEIGHTED_SUM_EVENT`	WEIGHTED_SUM_EVENT is fired whenever there is an observation that potentially updates the weighted sum value of the statistic.

Method Summary
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - INITIALIZED_EVENT
```
public static final EventType INITIALIZED_EVENT
```
    INITIALIZED_EVENT is fired whenever a statistic is (re-)initialized. The event should define the Statistic as the source and null as the content.
  - OBSERVATION_ADDED_EVENT
```
public static final EventType OBSERVATION_ADDED_EVENT
```
    OBSERVATION_ADDED_EVENT is fired whenever an observation is processed. The event should define the Statistic as the source and the observation value as the content.
  - WEIGHTED_OBSERVATION_ADDED_EVENT
```
public static final EventType WEIGHTED_OBSERVATION_ADDED_EVENT
```
    WEIGTHED_OBSERVATION_ADDED_EVENT is fired whenever a weighted observation is processed. The event should define the Statistic as the source and an Object[] with { weight, observation_value } as the content.
  - TIMESTAMPED_OBSERVATION_ADDED_EVENT
```
public static final EventType TIMESTAMPED_OBSERVATION_ADDED_EVENT
```
    OBSERVATION_ADDED_EVENT is fired whenever an observation is processed. The event should define the Statistic as the source and an Object[] with { timestamp, observation_value } as the content. This event is also fired at the end of the observations to signal the final values.
  - N_EVENT
```
public static final EventType N_EVENT
```
    N_EVENT is fired whenever n is updated. The event should define the Statistic as the source and the current (Long) value of n as the content.
  - COUNT_EVENT
```
public static final EventType COUNT_EVENT
```
    COUNT_EVENT is fired whenever there is an observation that potentially updates the count of the Counter. The event should define the Statistic as the source and the current (Long) count value as the content.
  - MIN_EVENT
```
public static final EventType MIN_EVENT
```
    MIN_EVENT is fired whenever there is an observation that potentially updates the lowest observed value of the statistic. The event should define the Statistic as the source and the current minimum observed value as the content.
  - MAX_EVENT
```
public static final EventType MAX_EVENT
```
    MAX_EVENT is fired whenever there is an observation that potentially updates the highest observed value of the statistic. The event should define the Statistic as the source and the current maximum observed value as the content.
  - POPULATION_MEAN_EVENT
```
public static final EventType POPULATION_MEAN_EVENT
```
    MEAN_EVENT is fired whenever there is an observation that potentially updates the population mean value of the statistic. The event should define the Statistic as the source and the current population mean as the content.
  - POPULATION_VARIANCE_EVENT
```
public static final EventType POPULATION_VARIANCE_EVENT
```
    VARIANCE_EVENT is fired whenever there is an observation that potentially updates the population variance of the statistic. The event should define the Statistic as the source and the current population variance as the content.
  - POPULATION_SKEWNESS_EVENT
```
public static final EventType POPULATION_SKEWNESS_EVENT
```
    SKEWNESS_EVENT is fired whenever there is an observation that potentially updates the population skewness of the statistic. The event should define the Statistic as the source and the current population skewness as the content.
  - POPULATION_KURTOSIS_EVENT
```
public static final EventType POPULATION_KURTOSIS_EVENT
```
    KURTOSIS_EVENT is fired whenever there is an observation that potentially updates the population kurtosis of the statistic. The event should define the Statistic as the source and the current population kurtosis as the content.
  - POPULATION_EXCESS_KURTOSIS_EVENT
```
public static final EventType POPULATION_EXCESS_KURTOSIS_EVENT
```
    EXCESS_KURTOSIS_EVENT is fired whenever there is an observation that potentially updates the population excess kurtosis of the statistic. The event should define the Statistic as the source and the current population excess kurtosis as the content.
  - POPULATION_STDEV_EVENT
```
public static final EventType POPULATION_STDEV_EVENT
```
    STDEV_EVENT is fired whenever there is an observation that potentially updates the population standard deviation of the statistic. The event should define the Statistic as the source and the current population standard deviation as the content.
  - SUM_EVENT
```
public static final EventType SUM_EVENT
```
    SUM_EVENT is fired whenever there is an observation that potentially updates the sum value of the statistic. The event should define the Statistic as the source and the current sum as the content.
  - SAMPLE_MEAN_EVENT
```
public static final EventType SAMPLE_MEAN_EVENT
```
    SAMPLE_MEAN_EVENT is fired whenever there is an observation that potentially updates the sample mean value of the statistic. The event should define the Statistic as the source and the current sample mean as the content.
  - SAMPLE_VARIANCE_EVENT
```
public static final EventType SAMPLE_VARIANCE_EVENT
```
    SAMPLE_VARIANCE_EVENT is fired whenever there is an observation that potentially updates the sample variance of the statistic. The event should define the Statistic as the source and the current sample variance as the content.
  - SAMPLE_SKEWNESS_EVENT
```
public static final EventType SAMPLE_SKEWNESS_EVENT
```
    SAMPLE_SKEWNESS_EVENT is fired whenever there is an observation that potentially updates the sample skewness of the statistic. The event should define the Statistic as the source and the current sample skewness as the content.
  - SAMPLE_KURTOSIS_EVENT
```
public static final EventType SAMPLE_KURTOSIS_EVENT
```
    SAMPLE_KURTOSIS_EVENT is fired whenever there is an observation that potentially updates the sample kurtosis of the statistic. The event should define the Statistic as the source and the current sample kurtosis as the content.
  - SAMPLE_EXCESS_KURTOSIS_EVENT
```
public static final EventType SAMPLE_EXCESS_KURTOSIS_EVENT
```
    SAMPLE_KURTOSIS_EVENT is fired whenever there is an observation that potentially updates the sample excess kurtosis of the statistic. The event should define the Statistic as the source and the current sample excess kurtosis as the content.
  - SAMPLE_STDEV_EVENT
```
public static final EventType SAMPLE_STDEV_EVENT
```
    SAMPLE_STDEV_EVENT is fired whenever there is an observation that potentially updates the sample standard deviation of the statistic. The event should define the Statistic as the source and the current sample standard deviation as the content.
  - WEIGHTED_POPULATION_MEAN_EVENT
```
public static final EventType WEIGHTED_POPULATION_MEAN_EVENT
```
    WEIGHTED_MEAN_EVENT is fired whenever there is an observation that potentially updates the weighted population mean value of the statistic. The event should define the Statistic as the source and the current weighted population mean as the content.
  - WEIGHTED_POPULATION_VARIANCE_EVENT
```
public static final EventType WEIGHTED_POPULATION_VARIANCE_EVENT
```
    WEIGHTED_VARIANCE_EVENT is fired whenever there is an observation that potentially updates the weighted population variance of the statistic. The event should define the Statistic as the source and the current weighted population variance as the content.
  - WEIGHTED_POPULATION_STDEV_EVENT
```
public static final EventType WEIGHTED_POPULATION_STDEV_EVENT
```
    WEIGHTED_STDEV_EVENT is fired whenever there is an observation that potentially updates the weighted population standard deviation of the statistic. The event should define the Statistic as the source and the current weighted population standard deviation as the content.
  - WEIGHTED_SUM_EVENT
```
public static final EventType WEIGHTED_SUM_EVENT
```
    WEIGHTED_SUM_EVENT is fired whenever there is an observation that potentially updates the weighted sum value of the statistic. The event should define the Statistic as the source and the current weighted sum as the content.
  - WEIGHTED_SAMPLE_MEAN_EVENT
```
public static final EventType WEIGHTED_SAMPLE_MEAN_EVENT
```
    WEIGHTED_SAMPLE_MEAN_EVENT is fired whenever there is an observation that potentially updates the weighted sample mean value of the statistic. The event should define the Statistic as the source and the current weighted sample mean as the content.
  - WEIGHTED_SAMPLE_VARIANCE_EVENT
```
public static final EventType WEIGHTED_SAMPLE_VARIANCE_EVENT
```
    WEIGHTED_SAMPLE_VARIANCE_EVENT is fired whenever there is an observation that potentially updates the weighted sample variance of the statistic. The event should define the Statistic as the source and the current weighted sample variance as the content.
  - WEIGHTED_SAMPLE_STDEV_EVENT
```
public static final EventType WEIGHTED_SAMPLE_STDEV_EVENT
```
    WEIGHTED_SAMPLE_STDEV_EVENT is fired whenever there is an observation that potentially updates the weighted sample standard deviation of the statistic. The event should define the Statistic as the source and the current weighted sample standard deviation as the content.
  - TIMED_N_EVENT
```
public static final EventType TIMED_N_EVENT
```
    TIMED_N_EVENT is fired whenever n is updated. The event should define the Statistic as the source and the current (Long) value of n as the content.
  - TIMED_MIN_EVENT
```
public static final EventType TIMED_MIN_EVENT
```
    TIMED_MIN_EVENT is fired whenever there is an observation that potentially updates the lowest observed value of the statistic. The event should define the Statistic as the source and the current minimum observed value as the content.
  - TIMED_MAX_EVENT
```
public static final EventType TIMED_MAX_EVENT
```
    TIMED_MAX_EVENT is fired whenever there is an observation that potentially updates the highest observed value of the statistic. The event should define the Statistic as the source and the current maximum observed value as the content.
  - TIMED_WEIGHTED_POPULATION_MEAN_EVENT
```
public static final EventType TIMED_WEIGHTED_POPULATION_MEAN_EVENT
```
    TIMED_WEIGHTED_MEAN_EVENT is fired whenever there is an observation that potentially updates the weighted population mean value of the statistic. The event should define the Statistic as the source and the current weighted population mean as the content.
  - TIMED_WEIGHTED_POPULATION_VARIANCE_EVENT
```
public static final EventType TIMED_WEIGHTED_POPULATION_VARIANCE_EVENT
```
    TIMED_WEIGHTED_VARIANCE_EVENT is fired whenever there is an observation that potentially updates the weighted population variance of the statistic. The event should define the Statistic as the source and the current weighted population variance as the content.
  - TIMED_WEIGHTED_POPULATION_STDEV_EVENT
```
public static final EventType TIMED_WEIGHTED_POPULATION_STDEV_EVENT
```
    TIMED_WEIGHTED_STDEV_EVENT is fired whenever there is an observation that potentially updates the weighted population standard deviation of the statistic. The event should define the Statistic as the source and the current weighted population standard deviation as the content.
  - TIMED_WEIGHTED_SUM_EVENT
```
public static final EventType TIMED_WEIGHTED_SUM_EVENT
```
    TIMED_WEIGHTED_SUM_EVENT is fired whenever there is an observation that potentially updates the weighted sum value of the statistic. The event should define the Statistic as the source and the current weighted sum as the content.
  - TIMED_WEIGHTED_SAMPLE_MEAN_EVENT
```
public static final EventType TIMED_WEIGHTED_SAMPLE_MEAN_EVENT
```
    TIMED_WEIGHTED_SAMPLE_MEAN_EVENT is fired whenever there is an observation that potentially updates the weighted sample mean value of the statistic. The event should define the Statistic as the source and the current weighted sample mean as the content.
  - TIMED_WEIGHTED_SAMPLE_VARIANCE_EVENT
```
public static final EventType TIMED_WEIGHTED_SAMPLE_VARIANCE_EVENT
```
    TIMED_WEIGHTED_SAMPLE_VARIANCE_EVENT is fired whenever there is an observation that potentially updates the weighted sample variance of the statistic. The event should define the Statistic as the source and the current weighted sample variance as the content.
  - TIMED_WEIGHTED_SAMPLE_STDEV_EVENT
```
public static final EventType TIMED_WEIGHTED_SAMPLE_STDEV_EVENT
```
    TIMED_WEIGHTED_SAMPLE_STDEV_EVENT is fired whenever there is an observation that potentially updates the weighted sample standard deviation of the statistic. The event should define the Statistic as the source and the current weighted sample standard deviation as the content.

Class StatisticsEvents

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

INITIALIZED_EVENT

OBSERVATION_ADDED_EVENT

WEIGHTED_OBSERVATION_ADDED_EVENT

TIMESTAMPED_OBSERVATION_ADDED_EVENT

N_EVENT

COUNT_EVENT

MIN_EVENT

MAX_EVENT

POPULATION_MEAN_EVENT

POPULATION_VARIANCE_EVENT

POPULATION_SKEWNESS_EVENT

POPULATION_KURTOSIS_EVENT

POPULATION_EXCESS_KURTOSIS_EVENT

POPULATION_STDEV_EVENT

SUM_EVENT

SAMPLE_MEAN_EVENT

SAMPLE_VARIANCE_EVENT

SAMPLE_SKEWNESS_EVENT

SAMPLE_KURTOSIS_EVENT

SAMPLE_EXCESS_KURTOSIS_EVENT

SAMPLE_STDEV_EVENT

WEIGHTED_POPULATION_MEAN_EVENT

WEIGHTED_POPULATION_VARIANCE_EVENT

WEIGHTED_POPULATION_STDEV_EVENT

WEIGHTED_SUM_EVENT

WEIGHTED_SAMPLE_MEAN_EVENT

WEIGHTED_SAMPLE_VARIANCE_EVENT

WEIGHTED_SAMPLE_STDEV_EVENT

TIMED_N_EVENT

TIMED_MIN_EVENT

TIMED_MAX_EVENT

TIMED_WEIGHTED_POPULATION_MEAN_EVENT

TIMED_WEIGHTED_POPULATION_VARIANCE_EVENT

TIMED_WEIGHTED_POPULATION_STDEV_EVENT

TIMED_WEIGHTED_SUM_EVENT

TIMED_WEIGHTED_SAMPLE_MEAN_EVENT

TIMED_WEIGHTED_SAMPLE_VARIANCE_EVENT

TIMED_WEIGHTED_SAMPLE_STDEV_EVENT